# Memo vs 4traders

The clearest difference is rating: Memo at 5.0 against 4traders's 3.0. Memo also leads on in-app purchases (none vs 1). 4traders's advantage is update cadence (every 3 weeks vs every 18 months) and review sentiment (100% vs 82%). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. 4traders sells 1 in-app purchase, starting at $39.99 per month. Memo asks for nothing beyond the download.

Memo holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 82% of Memo's written reviews are positive against 100% of 4traders's, so the app with the better star average is not the one people write more warmly about.

Memo ships an update every 18 months, 4traders every 3 weeks. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Memo | 4traders |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memo-estude-programacao/id1565438866/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/4traders/id1578387354/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 82.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 43 MB | 36 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OLYMPUS DESENVOLVIMENTO DE SOFTWARE LTDA](https://appshunter.io/developer/1231084149) | [4traders](https://appshunter.io/developer/1578387356) |

## What reviewers say

### Memo

[App page](https://appshunter.io/ios/app/memo-estude-programacao/id1565438866)

This app uses a flashcard-based approach to help users practice programming topics. It offers curated collections from basic to advanced levels, tracks user progress, and employs a spaced repetition algorithm to optimize learning. The application is community-built and encourages contributions.

**Highlights:** Flashcard-based learning, Programming topic collections, Spaced repetition algorithm, Progress tracking, Community-driven development, User sentiment logging

**Features:** macOS Compatibility

**In-app purchases:** none


### 4traders

[App page](https://appshunter.io/ios/app/4traders/id1578387354)

Master the stock and cryptocurrency markets with this app. It offers tools for secure investing, including market data, portfolio management, and exclusive community features. Access tutorials, courses, and expert analysis to enhance your investment knowledge.

**Highlights:** Market prices and indicators, Portfolio management, Investor community chat, Tutorials and courses, Expert market analysis, Cryptocurrency and NFT insights

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 4Traders Premium | $39.99 | per month |


## Frequently asked questions

### Is Memo free?

Memo is free to download, with no in-app purchases.

### Is 4traders free?

4traders is free to download, with in-app purchases available.

### Which has better reviews, Memo or 4traders?

Memo is rated higher. Memo averages 5.0 out of 5 from 1 ratings, while 4traders averages 3.0 from 1 ratings.

### Do Memo or 4traders have ads?

Neither Memo nor 4traders shows ads.

### Which is updated more often, Memo or 4traders?

Memo ships an update every 18 months, and 4traders every 3 weeks. Most recently, Memo was updated on October 15, 2026 and 4traders on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*